... D58-4 diversity receiver4x 5.8G 2dbi antenna1x power plug4x Avout cableHow to Use:To receive 4 ... AV4, and then connect the 12V DC power adapter--Switch on the power button, LED1,LED2,LED3,LED4 are on ... connect the antennas, and then apply the power--Switch on the power button--Set RX1,RX2,RX3,RX4 to the ... signal is confirmed. It will automatically switch to the receiver with the strongest signal